DESCRIPTION The functions dprintf() and vdprintf() (as
found in the glibc2 library) are exact analogs of fprintf(3)
and vfprintf(3), except that they out- put to a file
descriptor fd instead of to a stdio stream.

CONFORMING TO These functions are GNU extensions that
are nowadays specified in POSIX.1-2008

SEE ALSO printf(3), feature_test_macros(7)

COLOPHON This page is part of release 3.22 of the Linux
man-pages project. A description of the project, and
information about reporting bugs, can be found at
http://www.kernel.org/doc/man-pages/.